Home / 51,491.76-71,058.08-28,830.96

Finding the Fourth Proportional to 51,491.76, 71,058.08 and 28,830.96

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Solution

The fourth proportional to 51,491.76, 71,058.08 and 28,830.96 is: 39,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,491.76 : 71,058.08 = 28,830.96 : x
  2. Step 2: Convert to fraction form
    51,491.76/71,058.08 = 28,830.96/x
  3. Step 3: Cross multiply
    51,491.76x = 71,058.08 × 28,830.96
  4. Step 4: Simplify right side
    51,491.76x = 2,048,672,662.16
  5. Step 5: Solve for x
    x = 2,048,672,662.16/51,491.76
  6. Step 6: Final answer
    x = 39,786.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.